To find the number of divisors of a number, factor it into primes in power format; then the number of factors the number has is the product of the powers of the primes each incremented by 1. To find the proper divisors subtract one from thin number.
The prime factorization of 7920 is 2^4 x 3^2 x 5 x 11, so it has (4 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 5 × 3 × 2 × 2 = 60 factors. As this includes the number itself and the proper factors of a number exclude the number, 7920 has 60 - 1 = 59 proper factors (divisors).
Chat with our AI personalities
59
320 has 14 divisors.
7920 feet = 2640 Yards
7,920 feet = 1.5 miles
7920 feet are in 1.5 miles because, 5280 ft are in one mile. (5280 divided by 2) + 5280= 7920.