5 is a prime factor of 105,20 and 30
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A prime factor is a number that is only divisible by 1 and itself. The prime factors of 105 are 3, 5, and 7, as 105 = 3 x 5 x 7. The prime factors of 20 are 2 and 5, as 20 = 2 x 2 x 5. The prime factors of 30 are 2, 3, and 5, as 30 = 2 x 3 x 5.
Well, isn't that just a happy little question! Let's take a look at these numbers. For 105, one of the prime factors is 5. And for 20, we have 2 and 5 as prime factors. Lastly, for 30, we find 2, 3, and 5 as prime factors. Just like painting, finding prime factors is all about breaking things down into their simplest, most beautiful parts.
Oh, dude, let me break it down for you. So, the prime factors of 105 are 3, 5, and 7. And for 20, we've got 2 and 5. Lastly, for 30, it's 2, 3, and 5. So, like, those are the prime factors for each number. Cool, right?
The GCF is 10.
The greatest common factor (GCF) of 20, 30, and 50 is 10. To find the GCF, you need to determine the largest number that divides evenly into all three numbers. In this case, 10 is the largest number that is a factor of 20, 30, and 50. This can be calculated by finding the prime factors of each number and identifying the common factors among them.
210 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 16 factors of 210 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, and 210.The factor pairs of 210 are 1 x 210, 2 x 105, 3 x 70, 5 x 42, 6 x 35, 7 x 30, 10 x 21, and 14 x 15.The proper factors of 210 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 70, and 105 or,if the definition you are using excludes 1, they are 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 70, and 105.The prime factors of 210 are 2, 3, 5, and 7.The distinct prime factors (listing each prime factor only once) of 210 are also 2, 3, 5, and 7.The prime factorization of 210 is 2 x 3 x 5 x 7.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common. 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105 and 210.
The HCF of 30 and 105 is 15.
The factor pairs of 210 are: 1 and 210 2 and 105 3 and 70 5 and 42 6 and 35 7 and 30 10 and 21 14 and 15