7 - 5 - 3 - 2-3 is a number-

The correct option is B compositeThe given number is a composite number, because 7×5×3× 2+ 3=3(7×5× 2+ 1) =3(70+ 1) =3×71 Since the given number can be factori ...

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Standard X

Mathematics

Prime and Composite Numbers

7 × 5 × 3 × 2...

Question

$(7 \times 5 \times 3 \times 2 + 3)$ is a ________ number.

prime

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composite

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co-prime

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even

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Solution

The correct option is B composite
The given number is a composite number, because
$7 \times 5 \times 3 \times 2 + 3 = 3 (7 \times 5 \times 2 + 1)$
$= 3 (70 + 1)$
$= 3 \times 71$
Since the given number can be factorized in terms of two primes, it is a composite number.

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Similar questions

Question 6

Which of the following expressions show that rational numbers are associative under multiplication.
(a) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = (\frac{2}{3} \times \frac{- 6}{7}) \times \frac{3}{5}$
(b) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = \frac{2}{3} \times (\frac{3}{5} \times \frac{- 6}{7})$
(c) $\frac{2}{3} \times (\frac{- 6}{7} \times \frac{3}{5}) = (\frac{3}{5} \times \frac{2}{3}) \times \frac{- 6}{7}$
(d) $(\frac{2}{3} \times \frac{- 6}{7}) \times \frac{3}{5} = (\frac{- 6}{7} \times \frac{2}{3}) \times \frac{3}{5}$

Question 6

Q. Study the following number line and answer the questions that follow.
2 5 9 1 7 2 5 1 9 7 3 9 5 2 4 6 8 1 9 7 5 2 7 3 1 9 7 8 5 2 6 5 4 1 9 7 8 2 0 1 0 9 7 8 5 1 9 7 3 5 1 6 9 7 2 1 7 3 7 9 5 1

How many times is number '3' preceded by number '7' and not followed by an even number?

Q. Is (7 × 5 × 3 × 2 + 3) a composite number? Justify your answer.

Q. A real number

\frac{2^{2} \times 3^{2} \times 7^{2}}{2^{5} \times 5^{3} \times 3^{2} \times 7}

will have _________.

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(7×5×3×2+3) is a ________ number.

The correct option is B compositeThe given number is a composite number, because 7×5×3×2+3=3(7×5×2+1) =3(70+1) =3×71 Since the given number can be factorized in terms of two primes, it is a composite number.

$(7 \times 5 \times 3 \times 2 + 3)$ is a ________ number.

The correct option is B composite
The given number is a composite number, because
$7 \times 5 \times 3 \times 2 + 3 = 3 (7 \times 5 \times 2 + 1)$
$= 3 (70 + 1)$
$= 3 \times 71$
Since the given number can be factorized in terms of two primes, it is a composite number.