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Oh, dude, a number with 4 factors would have to be the product of two distinct prime numbers. So, like, if you multiply two different prime numbers together, you'll get a number with 4 factors - 1, the number itself, and the two prime numbers you multiplied. Math can be pretty chill sometimes, right?
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TaigaA number with exactly 4 factors must be a square of a Prime number. This is because factors come in pairs when a number is not a perfect square, but when a number is a perfect square, one of the factors is repeated, resulting in an odd number of factors. Therefore, the number must be the square of a prime number, such as 4 (2^2) or 9 (3^2).
No, because 4 is not a factor of 14, for example.The rule for finding if a number is a multiple of 4 is: If the last 2 digits of the number are a multiple of 4, then the number is a multiple of 4.
Example: here are some multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100
so if the last 2 digits of the number are 04, 08, 16, ...., 96, or 00, then the number is a multiple of 4 (or you can say that 4 is a factor)
234535721117575672 has 4 as a factor, because 72 are the last 2 digits.
Rather than memorize all multiples of 4 to 100, just remember this:
if the 'ones' digit is a 0, 4, or 8, then the 'tens' digit must be even (zero being even): example, 20, 48, 64
if the 'ones' digit is a 2 or 6, then the 'tens' digit must be odd.
example 16, 52, 36
No. 4 and 24 have a factor of 4, but 14 and 34 do not.
Any number in the 4 times table: 4, 8, 12, 16, 20, ...
There are two easy tests to see if a number has 4 as a factor (ie is divisible by 4, or, put another way, is a multiple of 4):
1) The last 2 digits of the number is a multiple of 4.
2) If the sum of the last (ones) digit plus twice the tens digit is a multiple of 4, then so is the original number.
The second test can be repeated on the sum; so if the summing is repeated until a single digit remains, then the number has 4 as a factor only if this single digit is 4 or 8.
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How are factors and multiples of a number are related?
Factors of the number will also be factors of the number's multiples. Multiples of the number will also be multiples of the number's factors.
What do you mean by number factors?
It means "to express a number or expression as a product of factors."
What are the factors of 4 and is it prime or composite?
The factors of 4 are 1, 2, and 4. The only prime factor of 4 is 2. The factors of 20 are 1, 2, 4, 5, 10, and 20. The prime factors of 20 are 2x2x5.
What are the number 4s factors?
4's factors are 2 X 2.
What number has the most factor?
There is no such number. You can always find a number that has yet more factors. For example, 4 has three factors (1, 2, 4), 8 has four factors (1, 2, 4, 8), 16 has five factors (1, 2, 4, 8, 16), etc. - and you can continue obtaining higher and higher powers of two, thus obtaining numbers with more factors than the previous one.
