16
16
30
Its...........60!
45 has six factors.
A composite number is a number that has at least 3 factors. (It can be evenly divided by at least 3 number.) 25 has 3 factors: 1, 5, and 25.
45
The expression 2x3x4x5 can be simplified to 120. The number 120 has the least number of factors because it is a product of consecutive prime numbers (2, 3, and 5). When a number is a product of distinct prime numbers, it will have fewer factors compared to numbers with repeated prime factors. In this case, 120 only has 16 factors, making it the least among numbers with the same number of prime factors.
1050.
It is 105
at least three factors.
20
45 is a composite number. A number is composite if it can be evenly divided by and least 3 numbers (if it has at least 3 factors). Any composite number has at least one factor other than one and itself. 45 has 6 factors: 1, 3, 5, 9, 15, and 45.