To identify the GCF of 91 and 78, you first need to break these down into their prime factors: 91 = 7x13 78 = 2x3x13 The next step is to identify any common prime factors. In this case, both numbers have 13 as a prime factor. Thus the greatest common factor of 91 and 78 is 13.
The least common multiple of 7 and 13 is 91. Because the numbers in the set are prime, their LCM is their product.
560 is a multiple of 7. It goes in 80 times. 91 is a multiple of 7. It goes in 13 times.
The greatest common factor (GCF) of three numbers is the largest number that divides each of the three numbers without leaving a remainder. To find the GCF of 91, 21, and 49, we need to factorize each number. The prime factors of 91 are 7 and 13, the prime factors of 21 are 3 and 7, and the prime factors of 49 are 7 and 7. The common factor among them is 7, so the GCF of 91, 21, and 49 is 7.
The factors of 91 are: 1 7 13 91 The prime factors are: 7 and 13
7 and 13
They are: 7 times 13 = 91
They are 7 times 13 = 91
91 = 7 x 13
7 x 13
No.
91 is the only composite factor of 91. 7 and 13 are prime.
7 x 13 89 + 2
91 is one of the numbers which has prime factors. 91=13 x 7. Here, 13 & 7 both are prime numbers.
127 is prime. 91 has more than two factors.
A person unfamiliar with prime numbers could mistake 51, 91, or any other composite number for a prime number if the person did not factor the number to make sure it had no other factors then 1 and itself.
91 x 1 = 91. 13 x 7 = 91. Prime numbers are only divisible by themselves & 1. False 91 is not a prime number.