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Earn +20 ptsQ: Why is 91 not a prime number?
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How do you know without dividing that 91 is not in the prime factorization of 75257?
91 cannot be in the prime factorization of any number because it is not a prime number itself.
Is 91 a prime number under 100?
91 is not a prime number. 91 is a composite number having the factors 1, 7, 13, and 91.
91 is a prime number true or false?
FALSE!!!! 91 is divisible by '7' Hence it is NOT a prime number.
What is the hcf 21 84 91?
The HCF of 21, 84 and 91 is.... 1 ! The number 91 is a prime number.
Are 57 and 91 prime numbers?
Only 91 is the prime number, 57 is a composite number because it is divisible by 3. ------------------------------- 57 and 91 are both composite. 57 = 19*3, and 91 = 13*7.
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