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What is the least common multiple of 9 21 and 7?
To find the least common multiple (LCM) of 9, 21, and 7, we first need to find the prime factorization of each number. The prime factorization of 9 is 3^2, 21 is 3*7, and 7 is a prime number itself. To find the LCM, we take the highest power of each prime factor that appears in any of the numbers: 3^2 * 7 = 63. Therefore, the least common multiple of 9, 21, and 7 is 63.
What is the LCM of 7 and 35?
The Least Common Multiple is 35(this occurs when the larger number is already a multiple of the smaller one)(*The Greatest Common Factor is 7. This likewise occurs when the smaller number is a factor of the larger number.)Since 35 is a multiple of 7, it is automatically the LCM.
What number is divisible by 3 and 7?
A number that is divisible by both 3 and 7 must be a multiple of their least common multiple, which is 21. Therefore, any number that is a multiple of 21 will be divisible by both 3 and 7. Examples of such numbers include 21, 42, 63, 84, and so on.
What is the factor tree of 21?
3x7=21 3 and 7 are prime numbers, so 3x7 is the factor tree of the number 21.
What goes into 7 and 21?
The number 7 and 21 have a common factor of 7. This means that 7 is a divisor of both 7 and 21. In mathematical terms, 7 is a factor of both numbers, as it divides each of them without leaving a remainder.
What number is a factor of 70 is a prime number and 21 is a multiple?
7
Which number is a multiple of 7 and has 3 as a factor?
21 has 3 as a factor and is a multiple of 7, and so as 210, 105, and an infinite number of other numbers.
Which number is a factor of 21 but not a multiple of 7?
3 is a factor of 21 and it is not a multiple of 7.
The number 21 is the least common multiple of which two numbers?
3 and 7 or 1 and 21 or 3 and 21 or 7 and 21. 21 and any factor of 21.
What number am I I am a multiple of 7 and a factor of 210. The product of my two digits is odd. What number am I?
21 or 35
Is 7 a multiple of 14 and 21?
No, 7 is a factor of them.
What number is both a factor and multiple of 7?
The only number that could be both a factor and a multiple is 7 itself.
What is the greatest common multiple of 14 and 21?
The greatest common multiple of any set of integers is infinite.--------------------------------------------------------------------------------------------------------Did you perhaps mean:the greatest common FACTOR (the greatest number which divides into 14 and 21 without remainder): gcf(14, 21) = 7;the LOWEST common multiple (the smallest number which is a positive multiple of both 14 and 21): lcm(14, 21) = 42
What is the least common multiple of 8 14 21?
you would have to make a factor tree for 8, 14, and 21. 8 equals 2*2*2. 14 equals 7*2 and 21 equals 7*3. Then you have to see what is the lowest number that they have in common. 8,14,21 do not have a number in commone so there isn't a common multiple.
Which number is a factor of 21 but not a multiple of 7 a.2 b. 4 c. 5 d. 3?
d. 3
What is number that is multiple of 3 also a multiple of 7?
21
Is 7 a common multiple of 14 and 21?
No, it's a common factor.
