12, 16, 20
Composite numbers can have any digit in the ones place: All multiples of 3 greater than 10 will be composite numbers (the first one being 3×4 = 12). The last digit of the multiples of 3 follow the pattern (starting at 12, ending at 39): {2, 5, 8, 1, 4, 7, 0, 3, 6, 9} which includes all the digits {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. Thus the last digit of composite numbers greater than 10 can contain any digit.
The first action sequence in the flow chart is to remove all multiples of 2 from numbers greater than 2. The next sequence removes removes all multiples of 3 from all numbers greater than 3. The third sequence removes all multiples of 5 from the remaining numbers greater than 5. The fourth sequence removes all multiples of 7 from the remaining numbers greater than 7. Additional sequences are added as needed to remove multiples of as many primes as desired in ascending order.
the answer of the first 4 composite numbers is 27
The first composite number greater than 21 is 22.
There are no multiples of 26 in that range.
The set of composite numbers includes all whole numbers greater than 1 that are not prime numbers. The first few composite numbers are 2, 4, 6, 8, 11, 13, etc.
Composite numbers can have any digit in the ones place: All multiples of 3 greater than 10 will be composite numbers (the first one being 3×4 = 12). The last digit of the multiples of 3 follow the pattern (starting at 12, ending at 39): {2, 5, 8, 1, 4, 7, 0, 3, 6, 9} which includes all the digits {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. Thus the last digit of composite numbers greater than 10 can contain any digit.
The first action sequence in the flow chart is to remove all multiples of 2 from numbers greater than 2. The next sequence removes removes all multiples of 3 from all numbers greater than 3. The third sequence removes all multiples of 5 from the remaining numbers greater than 5. The fourth sequence removes all multiples of 7 from the remaining numbers greater than 7. Additional sequences are added as needed to remove multiples of as many primes as desired in ascending order.
the answer of the first 4 composite numbers is 27
The first composite number is 4.
21 22 24 25 26 27 28 30 32 33
The first composite number greater than 21 is 22.
There are no multiples of 26 in that range.
Since you didn't specify a single number, and all numbers are multiples of themselves, the first 2000 multiples are the counting numbers 1 to 2000.
33 is the first composite number that is greater than 30 but is not a multiple of 2
4 is the first composite number greater than 1.
4