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What is the least common multiple of 8 and 16?
The least common multiple of 16 and 8 is 16. Because 16 is a multiple of 8, it is automatically the LCM of the pair. Another approach: To find the least common multiple, factor each number to its prime factors and then multiply all the factors from the first number with any factors in the second number that are not repeated from the first number. The prime factors of 8 are 2 x 2 x 2. The prime factors of 16 are 2 x 2 x 2 x 2.
How many integers between 13 and 19 inclusive have an even number of prime factors?
13 is prime 14=2x7, 2 factors 15=3x5, 2 factors 16=24, 4 factors 17 is prime 18=2x32, 3 factors 19 is prime So the answer is 3 (14, 15 and 16)
What is the smallest number with 5 factors?
16 has five factors.
What are the first three common factors of 16 and 21?
16 and 21 only have one common factor, the number one.
What is a number that has four identical even factors?
16 is a number that has four identical even factors.
Is 16 a a composite number with exactly 5 factors?
Indeed, the number 16 has 5 factors, 1, 2, 4, 8, and 16.
Which whole number have squares between 2000 and 250?
16 x 16 = 256 44 x 44 = 1936 16 to 44 inclusive
What are all the whole number factors of 16?
The factors of 16 are: 1, 2, 4, 8, 16.
Which number from ten to twenty has an odd number of factors?
Only perfect squares can have an odd number of factors. The answer is 16. It has five factors: 1,2,4,8,16.
How many factors does 16 have?
Factors are numbers you can multiply together to get another number. 16: 1, 2, 4, 8, 16 16 has 5 factors.
Which is a composite number 16 or 19?
A number which has more than two factors is called a composite number. Factors of 16 are 1, 2, 4, 8 and 16. As we can see that 16 has more than two factors so, it is a composite number. Whereas 19 is prime because it has only two factors: 1 and 19.
Can you explain why 10 has an even number of factors but 16 has an odd number of factors?
Because 16 is a square number and you wouldn't list the 4 twice.
