In the first field, there are 13 rows * 4 corn cobs/row = <<13*4=52>>52 corn cobs.

In the second field, there are 16 rows * 4 corn cobs/row = <<16*4=64>>64 corn cobs.

So the farm has grown a total of 52 corn cobs + 64 corn cobs = <<52+64=116>>116 corn cobs.

# Answer

116
<|im_start|>system
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<|im_start|>user
A farm is growing corn in 2 fields. One of the fields has 13 full rows of corn cobs, and the other field has 16 full rows of corn cobs. If each row contains 4 corn cobs, how many corn cobs has the farm grown?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
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user
116
A farm is growing corn in 2 fields. One of the fields has 13 full rows of corn cobs, and the other field has 16 full rows of corn cobs. If each row contains 4 corn cobs, how many corn cobs has the farm grown?
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